import * as mars3d from "mars3d"
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export let map // mars3d.Map三维地图对象
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export let graphicLayer
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let selectedView
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// 事件对象，用于抛出事件给面板
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export const eventTarget = new mars3d.BaseClass()
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// 需要覆盖config.json中地图属性参数（当前示例框架中自动处理合并）
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export const mapOptions = {
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scene: {
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center: { lat: 31.844146, lng: 117.20555, alt: 125, heading: 184, pitch: -17 }
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}
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}
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/**
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* 初始化地图业务，生命周期钩子函数（必须）
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* 框架在地图初始化完成后自动调用该函数
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* @param {mars3d.Map} mapInstance 地图对象
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* @returns {void} 无
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*/
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export function onMounted(mapInstance) {
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map = mapInstance // 记录首次创建的map
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addModel()
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}
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/**
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* 释放当前地图业务的生命周期函数
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* @returns {void} 无
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*/
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export function onUnmounted() {
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map = null
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}
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function addModel() {
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// 添加参考三维模型
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const tiles3dLayer = new mars3d.layer.TilesetLayer({
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name: "合肥国家大学科技园",
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url: "//data.mars3d.cn/3dtiles/qx-hfdxy/tileset.json",
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position: { alt: -24 },
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maximumScreenSpaceError: 1,
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maximumMemoryUsage: 1024
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})
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map.addLayer(tiles3dLayer)
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// 创建矢量数据图层
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graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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// 2.在layer上绑定监听事件
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graphicLayer.on(mars3d.EventType.click, function (event) {
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selectedView = event.graphic
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console.log("监听layer，单击了矢量对象", event)
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})
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// 可在图层上绑定popup,对所有加到这个图层的矢量数据都生效
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graphicLayer.bindPopup("我是layer上绑定的Popup")
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// 可在图层绑定右键菜单,对所有加到这个图层的矢量数据都生效
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graphicLayer.bindContextMenu([
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{
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text: "删除对象",
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icon: "fa fa-trash-o",
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callback: function (e) {
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const graphic = e.graphic
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if (graphic) {
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graphicLayer.removeGraphic(graphic)
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}
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}
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}
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])
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// 加一些演示数据
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addDemoGraphic1()
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}
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// 加载已配置好的视频（此参数为界面上“打印参数”按钮获取的）
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function addDemoGraphic1() {
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const video2D = new mars3d.graphic.Video2D({
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position: [117.205459, 31.842988, 64.3],
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style: {
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url: "//data.mars3d.cn/file/video/duimian.mp4",
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angle: 46.3,
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angle2: 15.5,
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heading: 178.5,
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pitch: 8.2,
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distance: 78,
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showFrustum: true
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}
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})
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graphicLayer.addGraphic(video2D)
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selectedView = video2D // 记录下
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eventTarget.fire("loadVideo", {
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value: {
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cameraAngle: selectedView.angle,
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cameraAngle2: selectedView.angle2,
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heading: selectedView.heading,
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pitchValue: selectedView.pitch,
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distanceValue: selectedView.distance,
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opcity: selectedView.opacity,
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ckdFrustum: selectedView.showFrustum
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}
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})
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}
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// 投射视频
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export function addVideo(data) {
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// 开始绘制
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graphicLayer.startDraw({
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type: "video2D",
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style: {
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url: "//data.mars3d.cn/file/video/lukou.mp4",
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angle: data.cameraAngle,
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angle2: data.cameraAngle2,
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heading: data.heading,
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pitch: data.pitchValue,
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distance: data.distanceValue,
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showFrustum: data.ckdFrustum
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},
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success: function (graphic) {
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console.log("绘制完成", graphic)
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selectedView = graphic // 记录下
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}
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})
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}
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// 按当前相机投射视频
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export function addThisCamera(data) {
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// 取屏幕中心点
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const targetPosition = map.getCenter({ format: false })
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if (!targetPosition) {
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return
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}
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const cameraPosition = Cesium.clone(map.camera.position)
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const fov = Cesium.Math.toDegrees(map.camera.frustum.fov) / 2 // 相机水平张角
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const aspectRatio = map.scene.canvas.clientWidth / map.scene.canvas.clientHeight // 获取canvas宽高
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// 构造投射体
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const video2D = new mars3d.graphic.Video2D({
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position: cameraPosition,
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targetPosition: targetPosition,
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style: {
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url: "//data.mars3d.cn/file/video/lukou.mp4",
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angle: data.cameraAngle,
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angle2: data.cameraAngle2,
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heading: data.heading,
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pitch: data.pitchValue,
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distance: data.distanceValue,
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opacity: data.opcity,
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showFrustum: data.showFrustum
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}
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})
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graphicLayer.addGraphic(video2D)
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selectedView = video2D // 记录下
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}
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// 清除
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export function clear() {
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graphicLayer.clear()
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selectedView = null
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}
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// 播放暂停
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export function playOrpause() {
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selectedView.play = !selectedView.play
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}
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// 修改水平角度
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export function onChangeAngle(value) {
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if (selectedView) {
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selectedView.angle = value
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}
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}
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// 修改垂直角度
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export function onChangeAngle2(value) {
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if (selectedView) {
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selectedView.angle2 = value
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}
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}
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// 修改投射距离
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export function onChangeDistance(value) {
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if (selectedView) {
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selectedView.distance = value
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}
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}
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// 修改四周距离 value 修改后的数值
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export function onChangeHeading(value) {
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if (selectedView) {
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selectedView.heading = value
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}
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}
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// 修改俯仰角数值 value 修改后的数值
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export function onChangePitch(value) {
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if (selectedView) {
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selectedView.pitch = value
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}
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}
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// 线框是否显示 isCheckde 修改后的数值
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export function showFrustum(isCheckde) {
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if (selectedView) {
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selectedView.showFrustum = isCheckde
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}
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}
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// 修改视频的透明度 opacity 透明度数值
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export function onChangeOpacity(opacity) {
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if (selectedView) {
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selectedView.opacity = opacity
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}
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}
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/**
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* 视频角度
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*
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* @param {number} num 0-360°
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* @returns {void}
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*/
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export function rotateDeg(num) {
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if (selectedView) {
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selectedView.setStyle({ stRotationDegree: num })
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}
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}
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// 视角定位
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export function locate() {
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if (selectedView) {
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selectedView.setView()
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}
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}
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// 打印参数
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export function printParameters() {
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if (selectedView) {
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const params = selectedView.toJSON()
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console.log(JSON.stringify(params))
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}
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}
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// 视频位置
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export function selCamera() {
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if (!selectedView) {
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return
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}
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map.graphicLayer.startDraw({
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type: "point",
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success: (graphic) => {
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const point = graphic.point
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graphic.remove() // 删除绘制的点
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selectedView.position = point
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}
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})
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}
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// 四周视角选点
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export function onClickSelView() {
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if (!selectedView) {
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return
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}
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map.graphicLayer.startDraw({
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type: "point",
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success: (graphic) => {
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const point = graphic.point
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graphic.remove() // 删除绘制的点
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selectedView.targetPosition = point
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}
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})
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}
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